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Clinical Trial Summary

Familial aggregation is well recognized in some cancers. Though a number of familial cancer predisposition syndromes have been described, the nature of inherited genetic alterations in patients with a strong history of familial cancer is currently unknown, as is the case with childhood acute lymphoblastic leukemia (ALL).

The investigators are seeking to learn more about what causes leukemia and why some people and families may be at a higher risk of developing this disease. By understanding the origin of the disease, better treatments may be identified for patients with leukemia.

PRIMARY OBJECTIVE: To identify variants in genes that are inherited, have altered gene structure and/or function, and influence the risk of developing acute lymphoblastic leukemia (ALL) and other cancers.

SECONDARY OBJECTIVE: To collect demographic, clinical and laboratory information including detailed family cancer history and response of cancers to therapy for correlation with the primary objective.


Clinical Trial Description

This study entails clinical interviews, submission of a peripheral germline blood sample for non-tumor DNA and permission to perform biologic studies on previously stored tumor tissue if applicable and available. Participants diagnosed with cancer at outside institutions will be requested to sign a release form to allow the outside institution to send germline and/or tumor tissue to St Jude if available. For patients who have undergone a stem cell transplant, a buccal swab or saliva sample will be requested (for germline DNA). For patients with active leukemia, non-tumor cells (for germline DNA) may be obtained using a remission blood sample, a skin biopsy (to obtain fibroblasts) or may be purified by fluorescence activated cell sorting of leukemia samples. The skin biopsy will be obtained in participants 18 years of age and older. In participants less than 18 years, the skin biopsy will be accessed only if it was already collected as part of another research protocol or for clinical care.

All patients being considered for enrollment will have a clinical genetics consult by one of the study team members at which time a family history will be taken and information about genomic testing will be introduced. Detailed medical history will be obtained which includes but is not limited to demographics, clinical data including laboratory results, cancer history/diagnosis, treatment outcomes, environmental exposures and cancer risk factors to enable phenotype/genotype correlations. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03067584
Study type Observational
Source St. Jude Children's Research Hospital
Contact
Status Completed
Phase
Start date May 9, 2017
Completion date June 23, 2017

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